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604011557[Authors] [Conformance Checkers] Discourage cargo-cult authoring that would lead to poor accessibility.2011-04-28 21:51
@@ -12084,57 +12084,63 @@ plaintext     = *( %x0000-2029 / %x202F-10FFFF )
   manually.</p>
 
 
 
   <h4><dfn>WAI-ARIA</dfn></h4>
 
   <p>Authors may use the ARIA <code title="attr-aria-role">role</code>
   and <code title="attr-aria-*">aria-*</code> attributes on <span>HTML
   elements</span>, in accordance with the requirements described in
   the ARIA specifications, except where these conflict with the
-  <span>strong native semantics</span> described below. These
+  <span>strong native semantics</span> or are equal to the
+  <span>default implied ARIA semantics</span> described below. These
   exceptions are intended to prevent authors from making assistive
   technology products report nonsensical states that do not represent
   the actual state of the document. <a href="#refsARIA">[ARIA]</a></p>
 
+  <p>Authors must not set the ARIA <code
+  title="attr-aria-role">role</code> and <code
+  title="attr-aria-*">aria-*</code> attributes in a manner that
+  conflicts with the semantics described in the following table,
+  except that the <code
+  title="attr-aria-role-presentation">presentation</code> role may
+  always be used. Authors must not set the ARIA <code
+  title="attr-aria-role">role</code> and <code
+  title="attr-aria-*">aria-*</code> attributes to values that match
+  the <span>default implicit ARIA semantics</span> defined in the
+  following two tables.</p>
+
   <div class="impl">
 
   <p>User agents are required to implement ARIA semantics on all
   <span>HTML elements</span>, as defined in the ARIA
   specifications. The <span>implicit ARIA semantics</span> defined
   below must be recognized by implementations. <a
   href="#refsARIAIMPL">[ARIAIMPL]</a></p>
 
   </div>
 
   <p>The following table defines the <span>strong native
-  semantics</span> <span class="impl">and corresponding <span>implicit
-  ARIA semantics</span></span> that apply to <span>HTML
-  elements</span>. Each language feature (element or attribute) in a
-  cell in the first column implies the ARIA semantics (role, states,
-  and/or properties) given in the cell in the second column of the
-  same row. Authors must not set the ARIA <code
-  title="attr-aria-role">role</code> and <code
-  title="attr-aria-*">aria-*</code> attributes in a manner that
-  conflicts with the semantics described in the following table,
-  except that the <code
-  title="attr-aria-role-presentation">presentation</code> role may
-  always be used. <span class="impl">When multiple rows apply to an
-  element, the role from the last row to define a role must be
-  applied, and the states and properties from all the rows must be
-  combined.</span></p>
+  semantics</span> and corresponding <span>default implicit ARIA
+  semantics</span> that apply to <span>HTML elements</span>. Each
+  language feature (element or attribute) in a cell in the first
+  column implies the ARIA semantics (role, states, and/or properties)
+  given in the cell in the second column of the same row. <span
+  class="impl">When multiple rows apply to an element, the role from
+  the last row to define a role must be applied, and the states and
+  properties from all the rows must be combined.</span></p>
 
   <table id="table-aria-strong">
    <thead>
     <tr>
      <th>Language feature
-     <th>Strong native semantics <span class="impl">and implied ARIA semantics</span>
+     <th>Strong native semantics and default implied ARIA semantics
 
    <tbody>
 
     <tr>
      <td><code>area</code> element that creates a <span>hyperlink</span>
      <td><code title="attr-aria-role-link">link</code> role
      <!--!--><!-- (this should really be the same as <a>) -->
 
     <tr>
      <td><code>base</code> element
@@ -12402,29 +12408,29 @@ plaintext     = *( %x0000-2029 / %x202F-10FFFF )
      <td>Element with a <code title="attr-hidden">hidden</code> attribute
      <td>The <code title="title-aria-hidden">aria-hidden</code> state set to "true"
 
     <tr>
      <td>Element that is a <span>candidate for constraint validation</span> but that does not <span title="concept-fv-valid">satisfy its constraints</span>
      <td>The <code title="title-aria-invalid">aria-invalid</code> state set to "true"
 
   </table>
 
   <p>Some <span>HTML elements</span> have native semantics that can be
-  overridden. The following table lists these elements<span
-  class="impl"> and their <span>implicit ARIA semantics</span></span>,
-  along with the restrictions that apply to those elements. Each
-  language feature (element or attribute) in a cell in the first
-  column implies, unless otherwise overridden, the ARIA semantic (role,
-  state, or property) given in the cell in the second column of the
-  same row, but this semantic may be overridden under the conditions
-  listed in the cell in the third column of that row. In addition, any
-  element may be given the <code
+  overridden. The following table lists these elements and their
+  <span>default implicit ARIA semantics</span>, along with the
+  restrictions that apply to those elements. Each language feature
+  (element or attribute) in a cell in the first column implies, unless
+  otherwise overridden, the ARIA semantic (role, state, or property)
+  given in the cell in the second column of the same row, but this
+  semantic may be overridden under the conditions listed in the cell
+  in the third column of that row. In addition, any element may be
+  given the <code
   title="attr-aria-role-presentation">presentation</code> role,
   regardless of the restrictions below.</p>
 
   <table id="table-aria-weak">
    <thead>
     <tr>
      <th>Language feature
      <th>Default implied ARIA semantic
      <th>Restrictions
 

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